RN55C1242FR36

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Through Hole Resistors are electronic components which are used as passive electrical components in many electronic circuits for limiting current, providing the necessary voltage dividers and also providing impedance matching for signal sources. The RN55C1242FR36 is a popular Through Hole Resistor with a wide range of application fields. This article discusses the application field and working principle of this component.

Application Fields

The RN55C1242FR36 is commonly used in various fields such as power supplies, clock circuits, audio amplifiers, satellite TV receivers, LED display boards, and automotive circuits. As it is a Through Hole Resistor, it is preferred when more space is needed for other components such as on a printed circuit board. The resistor is also used in battery chargers, personal computers, industrial controllers, instrumentation systems, and many other electrical systems. It is suitable for medium powered equipment which requires more robustness and precision in operation.

The component has a wide operating temperature range from -55 °C to +125 °C, making it suitable for a wide range of applications even in extreme weather conditions. The resistor also has a high surge current rating of 2.25A which makes it ideal for switching power supply circuits. This high surge current helps to prevent equipment damage due to instantaneous surges and also helps in maintaining the correct operating temperature.

Working Principle

The RN55C1242FR36 is a low resistance Through Hole Resistor that works by utilising the principle of electrochemical reaction between metal film and a dielectric substrate. In this type of resistor, the resistance is created when the metal film is deposited on the substrate and a current is passed through it. The current creates an electrochemical reaction between the metal and the substrate, which in turn creates resistance in the components.

The resistor has a thin-film design which has a low resistance tolerance between 0.01% and 0.05%. This means that the resistor is able to maintain a consistent resistance even in extreme conditions such as high temperature, humidity, and vibration. The resistor is also designed to be highly durable and reliable due to its ability to maintain its resistance even after a large number of temperature cycles.

The resistor also has excellent noise immunity which means that it can be used in very noisy environments. Furthermore, it has low ESR which ensures that the resistor does not create unnecessary heat that could lead to component damage or malfunction. Additionally, the resistor is designed to be non-inductive, meaning that it does not create any leading AC currents which prevent electromagnetic interference.

Conclusion

The RN55C1242FR36 is a low resistance Through Hole Resistor that has a wide range of applications in various fields. The component has an operating temperature range from -55 °C to +125 °C and a high surge current rating of 2.25A, making it ideal for switching power supply circuits. It is also non-inductive and has low ESR and excellent noise immunity, making it suitable for a wide range of applications. The component is highly durable and reliable due to its ability to maintain its resistance even after a large number of temperature cycles.

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